different between magnitude vs gravity

English

Etymology

From Latin magnit?d? (“greatness, size”), magnus +? -t?d?.

Pronunciation

• IPA^(key): /?mæ?n?tju?d/

Noun

magnitude (countable and uncountable, plural magnitudes)

1. (uncountable, countable) The absolute or relative size, extent or importance of something.
2. (countable) An order of magnitude.
3. (mathematics) A number, assigned to something, such that it may be compared to others numerically
4. (mathematics) Of a vector, the norm, most commonly, the two-norm.
5. (astronomy) A logarithmic scale of brightness defined so that a difference of 5 magnitudes is a factor of 100.
   1. (uncountable) The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude
   2. (countable) A ratio of intensity expressed as a logarithm.
6. (seismology) A measure of the energy released by an earthquake (e.g. on the Richter scale).

Derived terms

• order of magnitude
• absolute magnitude
• apparent magnitude

Translations

Anagrams

• gamnitude

French

Pronunciation

• IPA^(key): /ma.?i.tyd/

Noun

magnitude f (plural magnitudes)

1. magnitude

Derived terms

• magnitude absolue

Galician

Noun

magnitude f (plural magnitudes)

1. magnitude

Portuguese

Pronunciation

• Rhymes: -ud?i

Noun

magnitude f (plural magnitudes)

1. magnitude (size, extent or importance)
2. (mathematics) magnitude (value assigned to a variable)
3. (mathematics) magnitude (the norm of a vector)
4. (astronomy) magnitude (apparent brightness of a star)
5. (seismology) magnitude (energy of an earthquake)

English

Etymology

16th century, learned borrowing from Latin gravit?s (“weight”) (compare French gravité), from gravis (“heavy”). Doublet of gravitas.

Pronunciation

• IPA^(key): /???æv?ti/
• Hyphenation: grav?i?ty

Noun

gravity (countable and uncountable, plural gravities)

1. The state or condition of having weight; weight; heaviness.
2. The state or condition of being grave; seriousness.

3. (music) The lowness of a note.
4. (physics) Force on Earth's surface, of the attraction by the Earth's masses, and the centrifugal pseudo-force caused by the Earth's rotation, resulting from gravitation.
5. (in casual discussion, also) Gravitation, universal force exercised by two bodies onto each other (gravity and gravitation are often used interchangeably).
6. (physics) Specific gravity.

Synonyms

• weightfulness
• The state or condition of being grave: graveness, seriousness

Derived terms

• anti-gravity
• centre of gravity
• gravitation
• graviton
• gravity-assist
• gravity drag
• gravity turn
• gravity wave
• microgravity
• quantum gravity
• zero gravity

Translations

References

• John A. Simpson and Edward S. C. Weiner, editors (1989) , “gravity”, in The Oxford English Dictionary, 2nd edition, Oxford: Clarendon Press, ?ISBN

• Gravitation in the Encyclopædia Britannica (11th edition, 1911)